On Tue, 12 Apr 2005, Andy Bennett wrote: > Hi, > > > apart from catastrophic shorts > > or failures, what can cause a mains fuse to fail ? > > Heat sometimes causes fuses to fail, especially if you are running them > close to their rating for a long time. > In th UK you probably want a 3amp quick blow type fuse. It could be that the > cable you were using had a lower rating fuse. > Depending upon how your PSU has been specced it's either 423W input or 423W > output. If it's 423W output then it'll be drawing slightly more than that on > the input. At 220V you will be pulling close to 2amps, so a 3 amp fuse > /should/ suffice. >
Thanks for the comment. I've just checked, the fuse that blew was rated at 3 amps! (it's actually quite hard to get anything less than that for plugs now). The plug is just above the plug-in transformer for my KVM switch on the mains board (which hangs on my wall), and that transformer runs warm, so maybe I'd better move the transformer to the top of the board. Ken -- das eine Mal als Trag�die, das andere Mal als Farce -- http://linuxfromscratch.org/mailman/listinfo/lfs-chat FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
